LCM for 20 and 230

The first method to find LCM for numbers 20 and 230 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 20 and 230 is 10, so

LCM = (20 × 230) ÷ 10

LCM = 4600 ÷ 10

LCM = 460

The second method to find LCM for numbers 20 and 230 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 20: 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 500

Multiples of 230: 230, 460, 690, 920

So the LCM for 20 and 230 is 460

Another method to find LCM for numbers 20 and 230 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors: